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Tenacity, Herbicide


Last updated:


Authorisation Number: 
Pack size: 
1 L
Mode of action: 
Works by inhibiting the plant enzyme 4-hydroxyphenylpyruvate dioxygenas

Legal warning

Re-entry Period

  • Don't enter or allow worker entry into treated areas for 12 hours

Hazard Statements

  • Harmful if absorbed through skin. Prolonged or frequently repeated skin contact may cause allergic reactions in some individuals. Avoid contact with skin, eyes, or clothing.

Precautionary Statements

  • Hazards to Humans and Domestic Animals
Personal Protective Equipment
  • Wear proper personal protective equipment, refer to label for further instruction.

Other Restriction of Use

Do not plant any crop other than turfgrass species for 18 months after the last application of Tenacity or injury may occur.
Do not apply an organophosphate or carbamate insecticide within seven days of a Tenacity application as turf injury may occur.
Do not apply through any type of irrigation system.
Do not use aerial application to apply Tenacity.
Do not use grass clippings from treated turf as mulch around trees or in vegetable/flower gardens.

Tank mixing

Refer to label for further instruction

Tank mix preparation

Make sure the sprayer is clean and set to give an even application at the correct volume and an even deposit.

Implementation particular terms

Always use constant agitation of the sprayer tank during mixing, transportation and application.

Mixing and spraying

Fill the spray tank 1/4 full with clean water.
Start agitation and check to ensure it is working properly.
Add Tenacity directly into the tank.
Add the rest of the carrier to obtain the final spray volume.
Maintain vigorous agitation in the spray tank before and during the application.
This will ensure a well-mixed spray suspension.
Do not allow spray suspension to dry in the tank.
Thoroughly clean the sprayer after use by flushing the system with water containing a detergent.
Refer to the Pesticide Disposal section of this label for waste disposal.

Water volume

300 - 400 l/ha


Adapt the pressure for each spray-type.


1 Hour

Frost sensitivity


Tank mix lifespan

Immediate use.

Tank mix stability



Controls crabgrass whenever you need it
Tenacity doesn’t just control emerged crabgrass, but the residual activity helps prevent additional crabgrass from emerging.

  • In case of toxic or transport emergency ring +44 (0) 1484 538444 anytime (24hr)

  • Tenacity is a systemic pre mergence and post emergence herbicide for the selective contact and residual control of weeds in turf grass. When applied pre-emergence, weeds absorb Tenacity during emergence from soil. Dry condition following application may reduce the pre emergence activity.

    Key Feature:

    Phenomenal Crab Grass Control.



    • Crabgrass
    • Windmillgrass
    • Clover
    • Ground ivy
    • Goosegrass
    • Yellow foxtail
    • Yellow nutsedge
    • Oxalis


    Features and Benefits

    Unlike most herbicides, Tenacity can be applied anytime you are seeding, including:

    • Bare ground seeding or selective renovations
    • Overseeding of established turf
    • Fall, spring, or anytime you choose to seed